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Elucidation of evolutionary and molecular basis of animal special functions based on genome information and its application to highly functional sensors

Research Project

Project/Area Number 22K19097
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 37:Biomolecular chemistry and related fields
Research InstitutionTohoku University

Principal Investigator

Ogawa Tomohisa  東北大学, 農学研究科, 教授 (80240901)

Co-Investigator(Kenkyū-buntansha) 柴田 弘紀  九州大学, 生体防御医学研究所, 准教授 (80315093)
Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
KeywordsTRPチャネル / 赤外線受容装置 / ピット器官 / 毒蛇 / ゲノム解読 / 酵母発現系 / 加速進化 / ゲノム情報 / マムシ亜科毒ヘビ
Outline of Research at the Start

本研究は,マムシ亜科毒ヘビが特異的に持つピット器官受容体であるTRPチャネルの構造と機能,および進化を明らかにし,生物進化に基づく新規センサーデバイス開発に資する。そのため,ヒメハブゲノム解読によるTRPチャネル群の遺伝子構造と進化の解明,TRPチャネルタンパク質の機能解析,クライオ電子顕微鏡による構造解析と赤外線感受機構の解明を行う。特殊機能の作用機序の解明は,「加速進化のメカニズム 」など動物進化のパラダイム的転換を図るものとなり,本研究を挑戦的研究として進める意義がある。

Outline of Final Research Achievements

As a "special function of animals", we elucidate the details of the evolution, structure and function of TRPA1 channel and other TRP channels in pit organ receptors specific to pit vipers. In this study, we elucidated the gene structure and evolution of the TRP channel group by decoding the hub genome(1), analyzed the gene expression of TRP channels in various tissues including pit organs (transcriptome analysis)(2), and constructed a yeast expression system for the TRP channel proteins (3). We found that the TRPA1 gene is located on chromosome 3, which is different from venom genes that show accelerated evolution and located on micro chromosomes, and that it is successfully localized to the membrane in yeast transfected with α-factor TRPA1-yEGFP_p426GAL.

Academic Significance and Societal Importance of the Research Achievements

マムシ亜科(Crotalinae, pit viper)が特異的に持っている赤外線受容装置のピット器官の受容体transient receptor potential (TRP) チャネルの構造と機能,および進化についてはまだ不明な点が多い。特にどのように赤外線を受容してシグナルに変えているのか。この問題が明らかになれば,例えばテラヘルツ光センサーデバイスなど生物進化に基づく新規センサーデバイス開発に資することができる。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (9 results)

All 2023

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] A Metalloproteinase Cocktail from the Venom of Protobothrops flavoviridis Cleaves Amyloid Beta Peptides at the α-Cleavage Site2023

    • Author(s)
      Futai Eugene、Kawasaki Hajime、Sato Shinichi、Daoudi Khadija、Hidaka Masafumi、Tomita Taisuke、Ogawa Tomohisa
    • Journal Title

      Toxins

      Volume: 15 Issue: 8 Pages: 500-500

    • DOI

      10.3390/toxins15080500

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ベノミクス研究により明らかになった毒蛇ハブの新規毒成分の機能と毒関連特殊機能の進化2023

    • Author(s)
      小川智久,柴田弘紀,上田直子,佐藤矩行,服部正策,日高將文,二井勇人
    • Organizer
      第96回日本生化学会大会シンポジウム「動物毒って特異性が高いだけじゃない!どんどん拡がる面白い世界」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 毒蛇ハブのゲノム解析で明らかになった毒液タンパク質遺伝子の進化2023

    • Author(s)
      柴田弘紀, 上田直子, 千々岩崇仁, 中村仁美, 服部正策, 服巻保幸, 大野素徳, 佐藤矩行, 小川智久
    • Organizer
      第96回日本生化学会大会シンポジウム「動物毒って特異性が高いだけじゃない!どんどん拡がる面白い世界」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Identification of disulfide-rich peptides from Habu venom to regulate the activity of integrin2023

    • Author(s)
      Sato T, Futai E, Hidaka M, Ogawa T
    • Organizer
      60th Peptide Symposium
    • Related Report
      2023 Annual Research Report
  • [Presentation] HABU SNAKE THREE-FINGER TOXINS SHOWED INHIBITORY ACTIVITY AGAINST γ-SECRETASE INVOLVED IN AMYLOID β PRODUCTION CAUSING ALZHEIMER DISEASE2023

    • Author(s)
      Ogawa T. Sakakibara R, Seki M, Hidaka M, Futai E,
    • Organizer
      60th Peptide Symposium
    • Related Report
      2023 Annual Research Report
  • [Presentation] HABU SNAKE VENOMICS REVEALS UNIQUE VENOM COMPONENTS RELATED TO THE PROTEOLYSIS ENZYMES AND INHIBITORS2023

    • Author(s)
      小川智久
    • Organizer
      12th General Meeting of the International Proteolysis Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 毒蛇ハブベノミクス由来医薬シーズ:アルツハイマー病治療薬の探索2023

    • Author(s)
      小川智久
    • Organizer
      東京大学医科学研究所奄美病害動物研究施設第3棟改築記念シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] シンポジウムテーマ:動物毒って特異性が高いだけじゃない!どんどん拡がる面白い世界2023

    • Author(s)
      小川智久
    • Organizer
      第96回日本生化学会大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Patent(Industrial Property Rights)] アミロイドβを分解する酵素,及びこれを用いた医薬組成物2023

    • Inventor(s)
      二井勇人,小川智久,川崎 創,佐藤伸一,日高將文
    • Industrial Property Rights Holder
      二井勇人,小川智久,川崎 創,佐藤伸一,日高將文
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report

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Published: 2022-07-05   Modified: 2025-01-30  

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